just to set the record straight, that day in boston it was raining and about 51, 52 degrees. and so i was fine as long as i was running but then when i stopped running, my body temperature plunged. and francis just casually treated this event but i think she may have, i don't know if she saved my life but she certainly wrapped me up in lots of blankets and supplied with all kinds of drinks, perhaps good ones as well as bad ones, but whatever you did work. because we're both standing here today. >> if you took a snapshot of the world in the year, let's say 1700, you would see a world in which power was broadly diffused around the world. here in north america there really wasn't much economic or military capabilities, but across the atlantic and across the pacific there was a great deal, and power was roughly equally distributed across five men and real centers of power. the holy roman empire, in europe, the ottoman empire in what is today turkey, the mogul empire, present-day india, the ching dynasty, temporary china, and the tokugawa shogunate in japan. each of these fears ha